Thiruvasagam is a volume of Tamil hymns composed by the ninth century Shaivite bhakti poet Manikkavasagar. You can download Tamil Thiruvasagam in pdf from the below link. It contains 51 compositions and constitutes the eighth volume of the Thirumurai, the sacred anthology of the Tamil Saiva Siddhanta.
Numerous temples in Tamil Nadu are revered in the Thiruvasagam.
Some of the verses in the work contain subtle and intricate allegory and it is impossible to translate into other languages.
Link – Download Thiruvasagam pdf